Starter for internal combustion motors



1933- R. T. RONALDSON STARTER FOR INTERNAL COMBUSTION MOTORS Filed May 26, 1950 Patented Aug. 15, 1933 j U ITED "STATES STARTER Foe INTERNAL 'ooMBUsTroN MOTORS Robert T. Ronaldson, Beaumont, Tex., assignor to Upstarter Company, a Corporation of Texas pp fiMay 26, 1930, Serial No 155,641, and in Canada April 2, 1930" V J; i

1 Claim. (01. 123486) This invention relates to new and useful improvements in a starter for internal combustion motors.

One object of the invention is to provide an at- V tachment of the character described specially designed for use on motor vehicles whereby the switch controlling the electrical circuit through the starting motor may be closed from the timer controlling mechanism, and of such construction that said switch will be closed, and the starting motor started, only when the spark is retarded.

As commonly used the starter switch may be .closed and the starting motor started independ ently of the timer controlling mechanism with the spark is advanced, and in such case the vehicle motor often kicks back or works against the starting motor sometimes causing injury to the mechanism or breakage of the interconnected parts. It is the prime object of this invention to make it impossible, or at least improbable, that the motor will be started when the spark is advanced. Another object of the invention is to provide a device of the character described whereby any starting motor may be readily started from the spark controlling lever. V

A further feature of the invention resides in a provision of a device of the character described having a novel type of adjustable, plunger actuating lever. j

-A further feature of the invention is to provide a device of the character described which is of very simple construction, may be cheaply produced and readily installed, and which is very effective in use.

With the above and other objects in view this invention has particular relation to certain novel features of construction, operation and arrangement of parts, an example of which isgiven in this specification and illustrated in the accompanying drawing, wherein:

Figure 1 shows a side view of the attachment as mounted on a motor vehicle.

Figure 2 shows a fragmentary vertical sectional View, and

Figure 3 shows a plan View of the plunger actuating lever.

Referring now more particularly to the draw 50. ing, wherein like numerals of reference designate similar parts in each of the figures the numeral 1 designates the starting motor of the usual construction. Mounted on this motor is the switch housing 2 secured to and upstanding from which is the bushing 3 forming a bearing in which the .to the arm 9 and its free end-works against the outer end of the plunger 4. The section 11 is the result that said motor is often started when plunger 4 is mounted. The inner end of this plunger works against the insulating plate 5 which is carried by the flexible metallic switch tongue 6. The outer end of the plunger 4 has a caplike housing 7 pinned, or'otherwise secured, 6O thereon which works over the neck 3. Surrounding the outer end of the plunger and interposed between the neck 3 and the housing 7 there is a coil spring 8, which normally holds the plunger withdrawn from active'contact with the tongue 6.

An upstanding arm 9 is attached to the housing 2 and to the free end of this arm the plunger actuating lever is pivoteds This lever is formed of two sections 10, 11. The section 10 is pivoted bifurcated, forming the fingers 12, 12 which work on opposite sides of the connecting link 13. The pivoted end of the section 10 has an upwardly turned arm 10 which Works between the spaced clamp members 11', of the section 11. These clamp members have aligned arcuate slots as 14 and a clamp bolt 15 works-through said slots and through a bearing in the arm 10. Through this mechanism the respective sections 10, 11 may be adjusted relative to each other by loosening said bolt and may be held at any point of adjustment by said clamp bolt. By this adjustment the range of movement of the operative end of the section 10 of the lever may be regulated. The link 13 is connected at one end to the timer 16 and at its other end to the free end of the arm 17 which extends out laterally from the timer shaft 18. This shaft may be rotated back and forth through the spark lever 19 accessible to the vehicle driver. There is a push .bar 20, one end of which is pivotally connected to the free end of the lever 17 and whose outer end is overturned forming an abutment 21 which rests against the fingers 12 and through which the link 13 works. When the link 13 is shifted, to retard the s"park,'the abutment 21 will contact with the fingers 12 and actuate the actuating lever, which inturn, will force the plunger 4 inwardly against the plate 5 of the switch tongue 6 and said tongue will be thereby moved into contact with the switch contact point 22 and a circuit will be completed from the battery through the starting motor 1. 'Thestarting motor is operatively connected with the vehicle motor 23 through the conventional starter gearing provided for the purpose. The starting motor can thus be started only'when the spark is retarded and the vehicle motor, when starting, will not be liable to kick back and injure or breakthe starter gearing. The sections 10, 11 are-so ing motor will thereby be stopped.

The drawing and description disclose what is now considered to be a preferred form of the invention by way of illustration only, while the broad principle of the invention will be definedby the appended. claim. What I claim is: I

In a motor vehicle having an electric starting motor, an internal combustion motor geared with the starting motor, a spark controlling timer and mechanism controlling the timer to advance'or retard the spark; a switch for completing or' breaking an electrical circuit through the starting motor, means normally holding the switch open, a timer shaft, an arm fixed thereto, a link opcratively connected with .said'arm and with the timer through which the timer may be adjusted to advance and retardthe spark, a pivotally mounted adjustable lever, one end of which-is arranged to operate said switch, a push bar one end of which is attached to said arm and the other end oiwhich isoverturned forming an abutment which is movable with said link and through which the link works, said abutment being operable against the other end of the lever to effect the closing of the switch when the timer is moved. to position to retard the spark.

- ROBERT T. RONALDSON. 

